Observation 79592: Ramalina Ach.

When: 2011-10-15

Collection location: Marteleira, Lourinhã, Portugal [Click for map]

Who: zaca

No specimen available


Chemical reactions.

Proposed Names

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Recognized by sight: see comment

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Add Comment
Thanks, Jason, for the correction!
By: zaca
2011-10-15 18:13:11 CDT (-0500)

Clearly rushed me and did not quite understand the chemical reactions.

Looks more like a Ramalina to me
By: Jason Hollinger (jason)
2011-10-15 17:52:51 CDT (-0500)

(Or maybe Evernia?)

I don’t read K+y from the spot test photo, but it could be weak KC+y. Platismatia are all K+y KC- (cortex).

Also, the lobe margins are somewhat thickened. P. glauca has uniformly thin thallus, right to the edge. The soredia appear to be eroding the edges leaving flaps of bare cortex, suggesting Ramalina. P. glauca has isidia/soredia forming on top of the margins, not within the margins.

At least that’s my reasoning…